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glibc/sysdeps/unix/sysv/linux/powerpc/powerpc32
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Adhemerval Zanella 3f823e87cc Call exit directly in clone (BZ #21512) 
On aarch64, alpha, arm, hppa, mips, nios2, powerpc, sh, sparc, tile,
and x86_64 the clone syscall jumps to _exit after the child execution
and the function ends the process execution by calling exit_group.
This behavior have a small issue where threads created with
CLONE_THREAD using clone syscall directly will eventually exit the
whole group altogether instead of just the thread created.  Also,
s390, microblaze, ia64, i386, and m68k differs by calling exit
syscall directly.

This patch changes all architectures to call the exit syscall
directly, as for s390, microblaze, ia64, i386, and m68k.  This do not
have change glibc internal behavior in any sort, since the only
usage of clone implementation in posix_spawn calls _exit directly
in the created child (fork uses a direct call to clone).

Checked on x86_64-linux-gnu, i686-linux-gnu, aarch64-linux-gnu,
powerpc-linux-gnu, powerpc64le-linux-gnu, sparc64-linux-gnu,
and sparcv9-linux-gnu.

	[BZ #21512]
	* sysdeps/unix/sysv/linux/aarch64/clone.S (__clone): Call exit
	syscall instead of jump to _exit.
	(CLONE_VM_BIT): Remove unused define.
	(CLONE_VM): Likewise.
	(CLONE_THREAD_BIT): Likewise.
	(CLONE_THREAD): Likewise.
	* sysdeps/unix/sysv/linux/alpha/clone.S (__clone): Likewise.
	(CLONE_VM): Remove unused define.
	* sysdeps/unix/sysv/linux/arm/clone.S (__clone): Likewise.
	(CLONE_VM): Remove unused define.
	(CLONE_THREAD): Likewise.
	* sysdeps/unix/sysv/linux/i386/clone.S (CLONE_VM): Likewise.
	* sysdeps/unix/sysv/linux/ia64/clone2.S (__clone2): Call exit
	syscall instead of jump to _exit.
	* sysdeps/unix/sysv/linux/hppa/clone.S (__clone): Likewise.
	* sysdeps/unix/sysv/linux/mips/clone.S (__clone): Likewise.
	(CLONE_VM): Remove unused define.
	(CLONE_THREAD): Likewise.
	* sysdeps/unix/sysv/linux/nios2/clone.S (__clone): Likewise.
	(CLONE_VM): Remove unused define.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S (__clone):
	Likewise.
	(CLONE_VM): Remove unused define.
	(CLONE_THREAD): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S (__clone):
	Likewise.
	(CLONE_VM): Remove unused define.
	(CLONE_THREAD): Likewise.
	* sysdeps/unix/sysv/linux/sh/clone.S  (__clone): Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/clone.S (__clone): Likewise.
	(CLONE_VM): Remove unused define.
	* sysdeps/unix/sysv/linux/sparc/sparc64/clone.S (__clone): Likewise.
	(CLONE_VM): Remove unused define.
	* sysdeps/unix/sysv/linux/tile/clone.S (__clone): Likewise.
	* sysdeps/unix/sysv/linux/x86_64/clone.S (__clone): Likewise.
	(CLONE_VM): Remove unused define.
	* sysdeps/unix/sysv/linux/Makefile (tests): Add tst-clone3.
	* sysdeps/unix/sysv/linux/tst-clone3.c: New file.

Fix
2017-06-26 17:52:20 -03:00
..
405 Move powerpc ports pieces to libc. 2013-10-04 16:02:33 +00:00
440 Move powerpc ports pieces to libc. 2013-10-04 16:02:33 +00:00
464 Move powerpc ports pieces to libc. 2013-10-04 16:02:33 +00:00
476 Move powerpc ports pieces to libc. 2013-10-04 16:02:33 +00:00
970 powerpc: Re-work the Implies structure 2010-06-30 09:57:38 -07:00
a2 powerpc: PPCA2/A2 optimized memcpy function 2010-10-24 21:47:33 -04:00
cell powerpc: Re-work the Implies structure 2010-06-30 09:57:38 -07:00
e500/nofpu Add e500 port. 2013-10-18 21:04:22 +00:00
fpu posix: Implement preadv2 and pwritev2 2017-05-31 17:35:46 -03:00
nofpu posix: Implement preadv2 and pwritev2 2017-05-31 17:35:46 -03:00
____longjmp_chk.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
brk.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
c++-types.data powerpc: Consolidate nptl/ subdirectories under linux/.... 2014-06-23 09:40:01 -07:00
clone.S Call exit directly in clone (BZ #21512) 2017-06-26 17:52:20 -03:00
configure Move architecture cases out of sysdeps/unix/sysv/linux/configure.ac. 2014-06-24 20:53:03 +00:00
configure.ac Move architecture cases out of sysdeps/unix/sysv/linux/configure.ac. 2014-06-24 20:53:03 +00:00
fcntl.c
fxstat.c
fxstatat.c
getcontext-common.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
getcontext.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
glob64.c
kernel_stat.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
ld.abilist ld.so: Remove __libc_memalign 2016-11-30 16:23:58 +01:00
libanl.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libBrokenLocale.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libcrypt.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libdl.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libnsl.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libpthread.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libresolv.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
librt.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libthread_db.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libutil.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
lockf64.c
lxstat.c
makecontext.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
Makefile conformtest: XFAIL uc_mcontext test for powerpc32 (bug 21635). 2017-06-20 17:51:36 +00:00
scandir64.c Use correct scandir64 implementation on ppc64 2011-08-20 08:33:42 -04:00
setcontext-common.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
setcontext.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
swapcontext-common.S Make soft-float powerpc swapcontext restore the signal mask (bug 21045). 2017-01-16 21:34:48 +00:00
swapcontext.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
syscalls.list Consolidate Linux setrlimit and getrlimit implementation 2016-11-17 15:54:22 -02:00
sysdep-cancel.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sysdep.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
ucontext_i.sym * sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext.S: 2005-12-29 21:10:34 +00:00
Versions PowerPC: Move remaining nptl/sysdeps/unix/sysv/linux/powerpc/ files. 2014-05-26 11:45:14 -05:00
vfork.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
xstat.c